NE-1324: E2E tests for Assume Role in Shared VPC Cluster

New e2e_awssharedvpc E2E test package which contains the E2E tests for
AWS shared VPC clusters. These tests are isolated because of their
unique requirement for a specific cluster configuration. A common
package has been added to support both types of E2E tests. The new E2E
test validates the use of `spec.provider.aws.assumeRole.arn` in a shared
VPC cluster.

go.mod

@@ -19,6 +19,7 @@ require (
 	google.golang.org/api v0.58.0
 	k8s.io/api v0.27.4
 	k8s.io/apimachinery v0.27.4
+	k8s.io/apiserver v0.27.2
 	k8s.io/client-go v0.27.4
 	k8s.io/utils v0.0.0-20230209194617-a36077c30491
 	sigs.k8s.io/controller-runtime v0.15.1

go.sum

@@ -1215,6 +1215,8 @@ k8s.io/apimachinery v0.27.4 h1:CdxflD4AF61yewuid0fLl6bM4a3q04jWel0IlP+aYjs=
 k8s.io/apimachinery v0.27.4/go.mod h1:XNfZ6xklnMCOGGFNqXG7bUrQCoR04dh/E7FprV6pb+E=
 k8s.io/apiserver v0.21.3/go.mod h1:eDPWlZG6/cCCMj/JBcEpDoK+I+6i3r9GsChYBHSbAzU=
 k8s.io/apiserver v0.22.1/go.mod h1:2mcM6dzSt+XndzVQJX21Gx0/Klo7Aen7i0Ai6tIa400=
+k8s.io/apiserver v0.27.2 h1:p+tjwrcQEZDrEorCZV2/qE8osGTINPuS5ZNqWAvKm5E=
+k8s.io/apiserver v0.27.2/go.mod h1:EsOf39d75rMivgvvwjJ3OW/u9n1/BmUMK5otEOJrb1Y=
 k8s.io/client-go v0.21.3/go.mod h1:+VPhCgTsaFmGILxR/7E1N0S+ryO010QBeNCv5JwRGYU=
 k8s.io/client-go v0.22.1/go.mod h1:BquC5A4UOo4qVDUtoc04/+Nxp1MeHcVc1HJm1KmG8kk=
 k8s.io/client-go v0.27.4 h1:vj2YTtSJ6J4KxaC88P4pMPEQECWMY8gqPqsTgUKzvjk=